Delayed Egress on a High-Value Cage Door
A distribution center has a high-value cage with one door that opens directly into a 44-inch-wide corridor and serves as the required egress for six cage workers; the corridor also serves 40 warehouse occupants. The door has a 1,200 lb magnetic lock, a request-to-exit motion sensor, a door-position switch, and a card reader. Loss prevention wants to add a 15-second delayed-egress function and a local alarm because of recent pilferage. The fire alarm system is addressable, and the local authority having jurisdiction (AHJ) has not yet reviewed the change. A vendor says the delayed egress is 'code compliant because it releases in 15 seconds' and proposes to remove the motion sensor to prevent bypass. The security manager must decide what to approve.
1. Identify the life-safety and compliance issues in the vendor proposal.
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Delayed egress is an exception to free egress and is not automatically allowed; it must be approved by the AHJ and must meet the applicable code's conditions: usually a 15-second delay, release within 3 seconds on a push pad or similar, an audible alarm at the door, and release on fire alarm or power loss. Maglocks on egress must be fail-safe and interfaced to the fire alarm. Removing the REX motion sensor is a serious error because it eliminates a non-card exit method and increases entrapment risk. The vendor's '15 seconds' statement is incomplete. The door serves 40 occupants, so egress reliability is high-stakes. Do not approve the change until the AHJ reviews plans, the door hardware is listed for delayed egress, signage is provided, and the fire alarm interface is tested. Also check that the corridor width and door swing are not obstructed.
2. If the AHJ denies delayed egress, propose layered alternatives that improve loss prevention without compromising egress.
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Start with detection and response: door-prop alarm, local sounder, camera with video analytics for loitering or held doors, and guard response. Add asset-level controls: RFID or asset tags on high-value items, cycle counts, a two-person rule for cage entry, and random bag checks at the main exit. Use a separate controlled customer-service door for cage transactions, not the egress door. Consider a vestibule or interlock only where it does not serve as the required egress; never lock the egress path. Improve employee awareness and exception reporting. Measure false alarms and response times before expanding. These controls target theft without delaying escape.
3. Describe the test and documentation package required before acceptance.
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Submit shop drawings, product listings, and sequence of operations to the AHJ. Test normal card access; REX release; push-pad release within 3 seconds; 15-second delay and local alarm; fire alarm activation releases the lock; power loss releases the lock; battery backup; door-position and forced/held-door alarms; and the reset procedure. Verify signage and instructions. Record pass/fail results, test instrument readings, and witness signatures. Provide as-built drawings, the fire alarm interface matrix, the maintenance schedule, and annual inspection requirements. Keep test records for the AHJ and insurer.